diff --git a/spring-core/src/main/java/org/springframework/core/annotation/AnnotationAttributeExtractor.java b/spring-core/src/main/java/org/springframework/core/annotation/AnnotationAttributeExtractor.java
deleted file mode 100644
index a6844ecec30..00000000000
--- a/spring-core/src/main/java/org/springframework/core/annotation/AnnotationAttributeExtractor.java
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * Copyright 2002-2017 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.core.annotation;
-
-import java.lang.annotation.Annotation;
-import java.lang.reflect.Method;
-
-import org.springframework.lang.Nullable;
-
-/**
- * An {@code AnnotationAttributeExtractor} is responsible for
- * {@linkplain #getAttributeValue extracting} annotation attribute values
- * from an underlying {@linkplain #getSource source} such as an
- * {@code Annotation} or a {@code Map}.
- *
- * @author Sam Brannen
- * @since 4.2
- * @param <S> the type of source supported by this extractor
- * @see SynthesizedAnnotationInvocationHandler
- */
-interface AnnotationAttributeExtractor<S> {
-
-	/**
-	 * Get the type of annotation that this extractor extracts attribute
-	 * values for.
-	 */
-	Class<? extends Annotation> getAnnotationType();
-
-	/**
-	 * Get the element that is annotated with an annotation of the annotation
-	 * type supported by this extractor.
-	 * @return the annotated element, or {@code null} if unknown
-	 */
-	@Nullable
-	Object getAnnotatedElement();
-
-	/**
-	 * Get the underlying source of annotation attributes.
-	 */
-	S getSource();
-
-	/**
-	 * Get the attribute value from the underlying {@linkplain #getSource source}
-	 * that corresponds to the supplied attribute method.
-	 * @param attributeMethod an attribute method from the annotation type
-	 * supported by this extractor
-	 * @return the value of the annotation attribute
-	 */
-	@Nullable
-	Object getAttributeValue(Method attributeMethod);
-
-}
diff --git a/spring-core/src/main/java/org/springframework/core/annotation/SynthesizedMergedAnnotationInvocationHandler.java b/spring-core/src/main/java/org/springframework/core/annotation/SynthesizedMergedAnnotationInvocationHandler.java
index 6bd6caaa345..89eab8386f9 100644
--- a/spring-core/src/main/java/org/springframework/core/annotation/SynthesizedMergedAnnotationInvocationHandler.java
+++ b/spring-core/src/main/java/org/springframework/core/annotation/SynthesizedMergedAnnotationInvocationHandler.java
@@ -41,7 +41,6 @@ import org.springframework.util.ReflectionUtils;
  * @since 5.2
  * @param <A> the annotation type
  * @see Annotation
- * @see AnnotationAttributeExtractor
  * @see AnnotationUtils#synthesizeAnnotation(Annotation, AnnotatedElement)
  */
 final class SynthesizedMergedAnnotationInvocationHandler<A extends Annotation> implements InvocationHandler {
diff --git a/spring-core/src/test/java/org/springframework/core/annotation/AbstractAliasAwareAnnotationAttributeExtractorTestCase.java b/spring-core/src/test/java/org/springframework/core/annotation/AbstractAliasAwareAnnotationAttributeExtractorTestCase.java
deleted file mode 100644
index 5d9bf260160..00000000000
--- a/spring-core/src/test/java/org/springframework/core/annotation/AbstractAliasAwareAnnotationAttributeExtractorTestCase.java
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Copyright 2002-2015 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.core.annotation;
-
-import java.lang.annotation.Annotation;
-import java.lang.reflect.Method;
-
-import org.junit.Test;
-
-import org.springframework.core.annotation.AnnotationUtilsTests.GroovyImplicitAliasesContextConfigClass;
-import org.springframework.core.annotation.AnnotationUtilsTests.ImplicitAliasesContextConfig;
-import org.springframework.core.annotation.AnnotationUtilsTests.Location1ImplicitAliasesContextConfigClass;
-import org.springframework.core.annotation.AnnotationUtilsTests.Location2ImplicitAliasesContextConfigClass;
-import org.springframework.core.annotation.AnnotationUtilsTests.Location3ImplicitAliasesContextConfigClass;
-import org.springframework.core.annotation.AnnotationUtilsTests.ValueImplicitAliasesContextConfigClass;
-import org.springframework.core.annotation.AnnotationUtilsTests.XmlImplicitAliasesContextConfigClass;
-
-import static org.hamcrest.CoreMatchers.*;
-import static org.junit.Assert.*;
-
-/**
- * Abstract base class for tests involving concrete implementations of
- * {@link AbstractAliasAwareAnnotationAttributeExtractor}.
- *
- * @author Sam Brannen
- * @since 4.2.1
- */
-public abstract class AbstractAliasAwareAnnotationAttributeExtractorTestCase {
-
-	@Test
-	public void getAttributeValueForImplicitAliases() throws Exception {
-		assertGetAttributeValueForImplicitAliases(GroovyImplicitAliasesContextConfigClass.class, "groovyScript");
-		assertGetAttributeValueForImplicitAliases(XmlImplicitAliasesContextConfigClass.class, "xmlFile");
-		assertGetAttributeValueForImplicitAliases(ValueImplicitAliasesContextConfigClass.class, "value");
-		assertGetAttributeValueForImplicitAliases(Location1ImplicitAliasesContextConfigClass.class, "location1");
-		assertGetAttributeValueForImplicitAliases(Location2ImplicitAliasesContextConfigClass.class, "location2");
-		assertGetAttributeValueForImplicitAliases(Location3ImplicitAliasesContextConfigClass.class, "location3");
-	}
-
-	private void assertGetAttributeValueForImplicitAliases(Class<?> clazz, String expected) throws Exception {
-		Method xmlFile = ImplicitAliasesContextConfig.class.getDeclaredMethod("xmlFile");
-		Method groovyScript = ImplicitAliasesContextConfig.class.getDeclaredMethod("groovyScript");
-		Method value = ImplicitAliasesContextConfig.class.getDeclaredMethod("value");
-
-		AnnotationAttributeExtractor<?> extractor = createExtractorFor(clazz, expected, ImplicitAliasesContextConfig.class);
-
-		assertThat(extractor.getAttributeValue(value), is(expected));
-		assertThat(extractor.getAttributeValue(groovyScript), is(expected));
-		assertThat(extractor.getAttributeValue(xmlFile), is(expected));
-	}
-
-	protected abstract AnnotationAttributeExtractor<?> createExtractorFor(Class<?> clazz, String expected, Class<? extends Annotation> annotationType);
-
-}